Bottles may be warmed to remove the chill from the formula, so it is more comfortable to drink. This practice is usually necessary only until the child is 4-6 months of age. It only takes a few moments to warm the bottle to room temperature. Keeping the infant at a safe distance. You can warm the bottle in a container with hot tap water(or use a bottle warmer) and then use their wrist to test the temperature of the formula. Microwave oven are not recommended for warming bottles, because they heat the formula unevenly, possibly scalding a child.

This, I am also aware that it is not very healthy if you happen to heat up the bottle in microwave. Warm water is a very good option, this was done by me every time. I have heard that bottle warmers are also available now.Fresh feed is the best for the baby, but at times you have to manage but one should manage the best possible way.